The definition of good behavior on the frontier is even more elastic for a saddle-horse than for a team. Last spring one of the Three-Seven riders, a magnificent horseman was killed on the round-up near Belfield, his horse bucking and falling on him. "It was accounted a plumb gentle horse too," said my informant, "only it sometimes sulked and acted a little mean when it was cinched up behind." The unfortunate rider did not know of this failing of the "plumb gentle horse," and as soon as he was in the saddle it threw itself over sideways with a great bound, and he fell on his head, and never spoke again. Such accidents are too common in the wild country to attract very much attention; the men accept them with grim quiet, as inevitable in such lives as theirs--lives that are harsh and narrow in their toil and their pleasure alike, and that are ever-bounded by an iron horizon of hazard and hardship. During the last year and a half three other men from the ranches in my immediate neighborhood have met their deaths in the course of their work. One, a trail boss of the O X, was drowned while swimming his herd across a swollen river. Another, one of the fancy ropers of the W Bar, was killed while roping cattle in a corral; his saddle turned, the rope twisted round him, he was pulled off, and trampled to death by his own horse. The fourth man, a cowpuncher named Hamilton, lost his life during the last week of October, 1891, in the first heavy snowstorm of the season. Yet he was a skilled plainsman, on ground he knew well, and just before straying himself, he successfully instructed two men who did not know the country how to get to camp. They were all three with the round-up, and were making a circle through the Bad Lands; the wagons had camped on the eastern edge of these Bad Lands, where they merged into the prairie, at the head of an old disused road, which led about due east from the Little Missouri. It was a gray, lowering day, and as darkness came on Hamilton's horse played out, and he told his two companions not to wait, as it had begun to snow, but to keep on towards the north, skirting some particularly rough buttes, and as soon as they struck the road to turn to the right and follow it out to the prairie, where they would find camp; he particularly warned them to keep a sharp look-out, so as not to pass over the dim trail unawares in the dusk and the storm. They followed his advice, and reached camp safely; and after they had left him nobody ever again saw him alive. Evidently he himself, plodding northwards, passed over the road without seeing it in the gathering gloom; probably he struck it at some point where the ground was bad, and the dim trail in consequence disappeared entirely, as is the way with these prairie roads--making them landmarks to be used with caution. He must then have walked on and on, over rugged hills and across deep ravines, until his horse came to a standstill; he took off its saddle